Here is a solution that may work for you, it has for me and a few others.
As stated above, it depends on what pants you are planning on wearing because the correct pocket is a must, especially for a pistol the size of the R9.
A pretty looking holster is just that, pretty, it must however function. You would like for a good holster to do a multiple of tasks, looking pretty is icing on the cake.
You want to be able to draw from it, while the holster remains in the pocket. You want the holster to keep the pocket pistol orientated so you can grab the grip quick if need arises.
You would like for it to break up the outline of the pistol.
Buy a rear pocket holster, try it in your back pocket, then try it in your front pocket, or feel free to switch it around.
That's the versatility of the rear pocket holster.
I use a front pocket holster designed and hand made by RJ Hedley
for my R9.Sadly RJ had passed before I purchased a rear pocket holster from him for the R9.
Robert of MECO Pocket holsters was taught by RJ Hedley, but Robert improved upon the designs and made a few of his own. RJ certainly would be proud of Roberts designs and accomplishments.
For my Seecamps, I have a Hedley front pocket holster, but now I have several MECO front and rear pocket holsters. I do on occasion use the rear pocket holster in my front pocket, it works great.The flap on the holster helps break-up the pattern of the pistol.
Here is a MECO rear pocket holster with a Seecamp in it.
There have been some great responses to your question up above and I do agree with them. I do often carry two pistols, one is always pocket carry.
I prefer front pocket because I can keep my hand on the grip of the pistol if I need to without looking to conspicuous.